CS2350 Bipotentiostat / Dual-Channel Electrochemical Workstation

Product Introduction

The CS2350 Bipotentiostat / Dual-Channel Electrochemical Workstation is an advanced electrochemical analysis instrument developed from the single-channel CS350 potentiostat/galvanostat. It integrates two potentiostat/galvanostat channels, enabling independent or simultaneous electrochemical experiments using the same or different test methods.

When only the main channel is used, the CS2350 provides the functions of a CS350 single-channel workstation. Its dual-channel architecture offers additional capabilities for rotating ring-disk electrode (RRDE) measurements and hydrogen diffusion testing (HDT), making it suitable for advanced electrode reaction studies, corrosion research, energy materials development, and electrochemical mechanism analysis.

With support for cyclic voltammetry, linear sweep voltammetry, electrochemical impedance spectroscopy (EIS), stripping voltammetry, battery charge-discharge testing, and numerous other methods, the CS2350 provides a versatile platform for academic research, industrial R&D, and materials characterization.

Performance Features

• Dual Independent Electrochemical Channels: Two built-in potentiostat/galvanostat channels support independent or simultaneous experiments.

• Flexible Single-Channel Operation: The main channel can operate independently with functions comparable to the CS350.

•  Advanced RRDE Testing: Supports rotating ring-disk electrode experiments for investigating reaction intermediates and electrode reaction mechanisms.

• Hydrogen Diffusion Analysis: Enables hydrogen charging and oxidation measurements using a Devanathan–Stachurski dual-cell configuration.

•  Wide Potential and Current Ranges: Supports potential control up to ±10 V per channel and current output up to 2 A.

•  High-Resolution Signal Acquisition: Features 16-bit acquisition at 1 MHz and 20-bit acquisition at 1 kHz.

•  Broad EIS Frequency Range: Covers 10 μHz to 1 MHz for electrochemical impedance characterization.

• Comprehensive Test Methods: Supports voltammetry, chrono methods, polarization measurements, impedance analysis, corrosion testing, and battery charge-discharge experiments.

•  Automatic Range Selection: Automatic potential and current range selection simplifies test configuration.

•  Flexible Electrode Configuration: Supports two-, three-, or four-electrode systems.

•  PC-Based Operation: Uses an isolated USB 2.0 communication interface for computer-controlled experiments and data analysis.

Working Principle

The CS2350 controls electrode potential or current, measures the resulting electrochemical response, and processes the acquired signals using dedicated control and analysis software.

1. Dual-Channel Potentiostatic and Galvanostatic Control

Each channel contains a potentiostat/galvanostat circuit for controlling electrode potential or current. The two channels can run independently or simultaneously, allowing researchers to compare different experimental conditions or coordinate measurements within a specialized electrochemical setup.

2. Voltammetric Analysis

Methods such as cyclic voltammetry (CV), linear sweep voltammetry (LSV), differential pulse voltammetry (DPV), and square wave voltammetry (SWV) apply controlled potential waveforms and measure current responses. These measurements help characterize redox reactions, reaction kinetics, electroactive species, and electrode properties.

3. Electrochemical Impedance Spectroscopy (EIS)

The EIS module applies a small alternating signal over a selected frequency range, with an adjustable DC bias, and measures the corresponding electrochemical response. Impedance data can be used to investigate charge-transfer resistance, interfacial capacitance, diffusion processes, and equivalent-circuit behavior.

4. Rotating Ring-Disk Electrode (RRDE) Measurements

During RRDE experiments, the disk electrode is polarized to study the primary electrochemical reaction while the ring electrode is held at a selected potential to detect reaction intermediates generated at the disk. The dual-channel design supports coordinated disk and ring measurements for studying reaction pathways and selectivity.

5. Hydrogen Diffusion Testing (HDT)

In a Devanathan–Stachurski dual-cell setup, hydrogen is introduced into a metal specimen at the cathodic side and detected through oxidation at the anodic side. By analyzing the transient oxidation current and related measurements, researchers can evaluate hydrogen permeation, hydrogen flux, and the diffusion coefficient of hydrogen in metals.

Technical Parameters

General Specifications

Electrochemical Impedance Spectroscopy (EIS)

PC and Operating System Requirements

Note: The listed operating systems reflect the supplied specifications. Confirm compatibility with current Windows versions and the supplied software before purchase.

Software and Measurement Methods

Main Channel

Slave Channel

Application Scenarios

• Electrocatalysis Research: Evaluates oxygen reduction (ORR), oxygen evolution (OER), hydrogen evolution (HER), and carbon dioxide reduction reactions.

• RRDE Reaction Mechanism Studies: Detects reaction intermediates and investigates electrochemical reaction pathways and selectivity.

• Hydrogen Embrittlement and Diffusion Research: Supports hydrogen permeation measurements and diffusion studies in metallic materials.

• Battery and Energy Storage Development: Characterizes lithium-ion batteries, supercapacitors, fuel cells, and related energy materials.

•  Solar Cell and Functional Materials Research: Supports electrochemical characterization of solar-cell materials, advanced functional materials, and sensors.

•  Corrosion and Coating Evaluation: Investigates metal corrosion behavior and evaluates corrosion inhibitors, protective coatings, and cathodic protection.

• Electrodeposition and Electrosynthesis: Supports electroplating, anodic oxidation, electrolysis, and electrochemical synthesis.

•  Water Treatment and Chemical Stabilizer Research: Evaluates water-quality stabilizers, corrosion inhibitors, and related chemical formulations.

• Analytical Electrochemistry: Supports voltammetric, stripping, chronoamperometric, and impedance-based analytical methods.

CS2350 vs. Single-Channel Electrochemical Workstation

The CS2350 incorporates the core functions of the CS350 while adding a second built-in channel for specialized dual-channel experiments.

Frequently Asked Questions

1. What is the CS2350 bipotentiostat used for?

The CS2350 is used for electrochemical research, including voltammetry, impedance spectroscopy, corrosion testing, battery characterization, electrocatalysis, RRDE measurements, and hydrogen diffusion testing.

2. What is the main advantage of its dual-channel design?

Its two built-in potentiostat/galvanostat channels can conduct the same or different experiments independently or simultaneously, enabling coordinated measurements and specialized electrochemical setups.

3. Can the CS2350 operate as a single-channel workstation?

Yes. When only the main channel is used, the CS2350 functions as a single-channel workstation with capabilities comparable to the CS350.

4. What is RRDE testing, and why is it important?

Rotating ring-disk electrode testing measures the disk electrode's reaction behavior while the ring electrode detects selected reaction intermediates. It is widely used to investigate reaction mechanisms and selectivity in electrocatalysis, including oxygen reduction research.

5. How does the CS2350 support hydrogen diffusion testing?

The two channels can be used with a Devanathan–Stachurski dual-cell setup to measure hydrogen charging and oxidation currents. The resulting data can help determine hydrogen permeation flux and diffusion coefficients in metals.

6. What frequency range does the CS2350 support for EIS?

The specified electrochemical impedance spectroscopy frequency range is 10 μHz to 1 MHz, supporting impedance measurements across a broad range of electrochemical processes.

7. What is the maximum current output?

The specified maximum current output is 2 A, with selectable current ranges from 2 A down to 2 nA across 10 ranges.

8. Which electrochemical methods are supported?

The main channel supports CV, LSV, DPV, NPV, SWV, chrono methods, stripping voltammetry, EIS, corrosion analysis, and battery charge-discharge testing, among other methods. The slave channel supports a defined subset of polarization, voltammetry, corrosion, and battery methods.

9. Which electrode configurations are compatible with the CS2350?

The workstation supports two-, three-, and four-electrode systems. The appropriate configuration depends on the experiment, electrode assembly, and test method.

10. Can the CS2350 be used for battery and corrosion research?

Yes. Its software includes battery charge-discharge, galvanostatic charge-discharge, Tafel analysis, electrochemical noise, and zero-resistance ammeter methods, making it suitable for relevant energy-material and corrosion studies.